SpaceX Falcon 9 Lander is a fun twist on the classic Lunar Lander game that has you trying to perfectly balance thrust, rotation, descent, and your remaining fuel to safely land a rocket ship back on a floating platform.

Playing it is slightly less stressful than trying to land the real Falcon 9 since you’re not out millions of dollars every time you crash–but only just. If you’re looking for a way to relax and kill some time this afternoon, this isn’t it. But if you want to feel as frustrated as Elon Musk does, definitely give it a shot.